Rare enriched bone

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Rare enriched bone detail.png

Rare enriched bones are obtained by using rare fossils obtained from Fossil Island and depositing them into the mycelium pool. Players must add 10 pyrophosphite and 10 calcite along with the fossil to calcify it.

They are then used on the eastern strange machine inside the House on the Hill for 2,500 Prayer experience.

Prayer info[edit | edit source]

Changes[edit | edit source]

Date Changes
18 January 2018

The Prayer experience given when used on the machine inside the House on the Hill was increased from 500 to 2,500.